Lock.



No. 833,301. PATENTED OCT. 16, 1906.

W. J. CARROLL & M. J. MARA.

LOOK.

APPLICATION FILED SEPT. 24,1904.

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PATENTED 0GT. 16, 1906. W. J. CARROLL & M J. MARA.

LOCK. APPLIUATION FILED SBPT.24,1904.

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UNITED STATES PATENT OFFICE.

WILLIAM J. CARROLL AND MICHAEL J. MARA, OF NEW HAVEN, CON- NECTICUT, ASSIGNORS TO SARGENT & COMPANY, OF NEW HAVEN,

CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOCK.

Specification of Letters Patent.

Patented Oct. 16, 1906.

Application filed September 24, 1904. Serial N0 225,773.

To all whom it may concern:

Be it. known that we, VVILLIAM J. CARROLL and MIOHAEL J. MARA, of the city and county of New Haven, State of Connecticut, have in- I vented new and useful Improvements in l Locks, of which the following is a full, clear, l and exact description, when taken in connec tion with the accompanying drawings, which form a part thereof, and in which- Figure 1 represents an end elevation of a lock embodying the invention; Fig. 2, a top view of the same; Fig. 3, a detail view of the l latch-bolt and associated parts, the bolt being shown in its reversed position; Figs. 4, 5, 6, and 7, side elevations of the lock, the capplate being removed and the parts being shown in various positions; Figs. 8 and 9, detail side and edge views, respectively, of thetripping-lever; Figs. 10 and 11, similar views of the bolt and tumbler; Fig. 12, detail view of the latch-bolt-operating lever.

In all figures similar letters of reference represent like parts.

This invention relates to locks, and more particularly to that class of locks having a latch-bolt operatable by a knob or knobs and a dead-bolt operated by a key, and has for one of its objects the production of a lock in which the latch-bolt and dead-bolt may be retracted simultaneously by means of the key; and to this end it consists in the improvements and novel combinations of parts set forth and claimed hereinafter.

The invention is shown applied to a mortise-lock, but may obviously be utilized in looks of other forms. In the lock shown the latch-bolt is of reversible construction, so that it may be used either on a right-hand or left-hand door.

The invention further consists of other improvements more fully described hereinafter.

- Referring to the drawings for a more particular description, the part designated by the letter A represents the case of a mortiselock, B the face-plate, and C the cap-plate. The faceplate B is provided with rearwardly-extending flanges D for screws E, extending through the top and bottom of the casing.

F designates the latch-bolt, and G the dead-bolt, of the lock. The latch-bolt F is provided with a T- haped rearward xten-l sion, which is adapted to be en front side by a flange H on a sliding yoke I. l tracted,

aged on its l operating-lever E K desi nates the hub adapted to receive the spindIe of the knob or knobs J. The hub K has wings L, engaging flanges M on the sliding yoke I, so that the rotation of the hub will retract the sliding yoke I and the yoke I in turn will retract the latch-bolt F by means of the flange H.

A latch-lever N is pivoted on a post O on the sliding yoke I and bears with its free end against the rear face of the inward T-shaped projection of the latch-bolt F. A spring 1?, secured to the case A and to a hook on the latch-lever N, normally holds the lever against the latch-bolt, thereby normally holdingthe latch-bolt and yoke in their protracted positions.

The dead-bolt G carries a tumbler Q, pivoted to it at R, and the tumbler Q has a lateral lug or offset T, adapted to engage on one side or the other of a stump U in the case A, according as the bolt is in its protracted or retracted position. A spring S holds the tumbler yieldingly in its normal position, Figs. 5 and 6.

V designates a cylinder-lock, and W its bit, (of well-known constructiom) adapted upon its rotation to bear upon an upwardly-projecting end X of the tumbler Q to swing the tumbler downward against the tension of the spring S, so'that the lug T is disengaged from the stump U. The bit W is further adapted to bear on one of the two flanges Y on the bolt G to force the bolt forward or rearward, as the case may be.

Z designates a tripping-lever mounted on a post A in the case above the bolt G. The tripping-lever Z is provided with two arms and C. A spring D holds the trippinglever in its normal position, (shown in Fig. 4,) wherein the arm C bears against the upper end of an operating-lever E, pivotally mounted on a post F on the case between the bolts F and G. The lower end of the operating-lever E projects on the front side of thg1 T-shaped end of the latch-bolt F, Figs. 4 an 7.

G designates a depending arm on the bolt G, which is provided with a shoulder K, adapted to extend in the rear of the T-shaped end of the latch-bolt F, and a stud H so located as to abut against the lower end of the when the bolt G is pro- Figs. 5 and 6, and swing the lower the latch-bolt and reverse it for'use on a door swinging in the opposite direction.

Having now described our invention, (which may vary somewhat in its details without departing from the spirit thereof,) what we claim, and desire to secure by Letters Patent, is

1. In a lock, the combination with the casing; of a plurality of bolts movable in said casing; an operating-lever pivoted in said casing and adapted to engage said bolts to retract them synchronously; and mechanism adapted to protract one of said bolts and to swing said operating-lever on its pivot to retract both of said bolts, substantially as described.

2. In a lock, the combination with the casing; of a plurality of bolts movable in said casing; means for yieldingly holding one of said bolts in its protracted position a lever adapted to engage said normally protracted bolt and another bolt when protracted; and mechanism adapted to protract said other bolt and to swing said lever on its pivot to retract both of said bolts synchronously, substantially as described.

3. In a lock, the combination with the casing; of a plurality of bolts movable in said casin means for yieldingly holding one of said bolts in its protracted position; a de pending arm on another bolt; an operatinglever adapted to engage said normally protracted bolt and said arm of the other when said other bolt is protracted; and mechanism for swinging said lever on its pivot to retract both of said bolts synchronously, substantially as described.

4. In a lock, the combination with the casing; of a plurality of bolts movable in said casing; an operating-lever adapted to engage said bolts when protraoted; a trippinglever adapted to swing said operating-lever to retract said bolts synchronously, and mechanism engaging said tripping-lever, substantially as describe 5. In a lock, the combination with the easend of the operating-lever E forward. Upon this forward movement of the lower end of the operating-lever E the upper end of the lever will swing the tripping-lever upward to substantially the position shown in Fig. 5. The bit W of the cylinder-lock comes in contact with the arm B of the tripping-lever upon its rotation after protracting the bolt G, and its further rotation swings the tripping-lever Z on its pivot, as shown in Fig. 6, to a position where the bit is able to disengage itself from the tripping-lever. Continued rotation of the bit W brings it to its normal position, (shown in Fig. 4,) wherein the key may be withdrawn from the cylinderlock in well-known manner. The spring will thereupon throw the lever downward, and its lower arm C Will bear upon a flange I on the tumbler Q of the bolt G, Fig. 5.

When the bit W is rotated from its normal position (shown in Fig. 4) in a direction counter-clockwise to retract the bolt, (both bolts being protracted,) it will first come in contact with the arm B of the tripping-lever Z, forcing the tripping-lever downward. The arm C of the tripping-lever Z, bearing 011 the flange I, will swing the tumbler Q on its pivot against the tension of the spring S, thereby disengaging the lug T from the stump U. Further downward movement of the tripping-lever Z will bring the arm C against the upper end of the operating-lever E, swinging the latter on its pivot, so that its lower end will engage the T-shaped end of the latch-bolt F and retract the latch-bolt. At the same time, as the bolt G is in its protracted position, the lower end of the operatinglever IE will bear against the stud H on the arm G of the bolt G, before the tumbler Q can swing back to engage the'stump U thereby also retracting the bolt G, so that the par tial rotation of the bit W of the lock V in a direction counter-clockwise will retract synchronously the bolt G and the latch-bolt F, Fig. 7. The bit W is not capable of makin an entire rotation in this direction, but wil stop when in the position shown in Fig. 7, so ing; of a plurality of bolts movable in said that after the bolt G and latchbolt F have casing; a tumbler for one of said bolts; an

been retracted to remove the key the movement of the bit is reversed to bring it into the position shown in Fig. 4, when the key may be withdrawn from the look. When the tripping-lever Z a is released from engagement with the bit W, the spring P, by means of the latch-lever N, will force the latch-bolt F outward to its protracted position, at the same time swinging the operating-lever E and the tripping-lever Z into the position shown in Fig. '4.

operating-lever adapted to engage said bolts when protracted; a tripping-lever adapted to disengage said tumbler and swing said opsynchronously; and mechanism for operating said tripping-lever, substantially as described.

In witness whereof we have hereunto set our hands on the 23d day of September, 1904.

WILLIAM J. CARROLL. MICHAEL J. MARA.

The latch-bolt shown in this construction Witnesses: 1s adapted for use on either a right or left WILLIAM A. RICE, hand door, for it is only necessary to remove L. F. BREESE.

erating-lever on its pivot to retract said bolts ICC 

